Machine for operating on heels



T. LUND MACHINE FOR OEERATING ON HEELS Aug. 11, 1931.

Filed Oct. 20, 1928 5 Sheets-Sheet l Aug 11, i931. T. LUND 1,818,142

I MACHINE FOR OPERATING ON HEELS Filed Oct. 20, 1928 5 Sheets-Sheet 2 62 74 y; 166 Fl Aug. 11, 1931. LUND 1,818,142

MACHINE FOR OPERATING ON HEELS FiJ ed Oct. 20, 1928 5 Sheets-Sheet 5 Aug. 11, 1931. T. LUND 1,313,142

v MACHINE FOR OPERATING ON HEELS Filed Ot. 20, 1928 5 Sheets-Sheet 4 1f IIF W Auge EL 1931 T. LUND' 1,818,142

MACHINE FOR OPERATING 0N HEELS Filed Oct. 20. 1928 5 Sheets-Sheet 5 Patented Aug. 11 193i UNETEQ STATES PATENT @FFTCE THOMAS LUND, OF BEVERLY, TEAS ERY CORPORATION, 21 PATERSG Y, A CORPORATION OF NEW JERSEY MACEIE-IE OPERATING N HEELS Application filed October 20, 1928.

This invention relates to machines for operating upon heels. In one aspect it consists in heel breasting mechanism adapted to be incorporated in a heel compressing machine of the general type wherein compressing dies are carried in a reciprocatory cross head. In another aspect it consists in improvements of general application to heel compressing machines, while in still another 0 aspect it consists in improvements of general application to heel breasting machines.

Heel compressing machines of the type referred to are in wide'commercial use and the advantages of providing breasting mechanism whereby these machines may be employed for the additional function of breasting will be apparent. In the compressing operation, each hecl is definitely located in the compressing dies with the greatest accuracy possible. It is proposed to take advantage of this condition and provide breasting mechanism adapted to be incorporated in such a machine and to operate upon the heel as thus 4 located in the compressingoperation. This may be satisfactorily efiected, in accordance with one feature of the present invention, by providing a breasting knife within the range of which the heel to be breasted is presented by the movement of the compressing dies into 0 compressing position.

I have discovered a novel manner of timing the movement of the compressing dies which permits incorporating breasting mechanism in a compressing machine of'the type having 0 a toggle operated cross head.

The compress ing operation is consumated and the dies fully closed when the toggle is straightened or brought to its dead center. In accordance n with an important feature of my invention,

however, the toggle is carried past its dead center and then again straightened and broken in being returned to its initial position. The movement of the toggle past its dead center is suficient only to release the extreme pressure of compression upon the heel but not suficient to permit the heel to be displaced in the dies. It is sufi'icient in dura tion, however, to allow time for the breasting operation without in any way interfering erial No. 313,881.

with the other operations in the machine cycle.

The contour of the compressing die is completed by a breast block which is arranged to en 'age the breast of the heel and to position it positively in the die in a longitudinal direction. The breast block must be retracted to permit the breasting operation to take place. Another feature of my invention, accordingly, consists in novel mechanism for controlling the position of the breast block at all times during the cycle of the machine and for retracting it preliminarily to the breasting operation. As herein shown, toggle-operated positioning members are provided for the breast block. Operating means for these members is arranged to act during the initial movement of the breasting knife so that before the breasting knife en counters the heel the breast block has been displaced and moved to an inoperative position.

A feature of the invention which is of general application to breasting machines consists in the combination of heel clamping members adapted to engage the opposite flat faces of a heel, which have faces adapted to guide the breasting knife together with pro vision for insuring contact between the breasting knife and said faces during the breasting operation. Such a construction affords means for holding the heel with a high degree of accuracy and for positively guiding the breasting knife accurately in the required path. It is of particular advantage in connection with a breasting knife having an inclined shearing edge and supplies a stationary shear member in cooperation with the breasting knife.

Vfhere one of the heel-engaging members comprises the top plate, that is to say, the plate which forms the bottom of the compressing die and, therefore, isnot rigidly confined at all times, it is important to locate this plate positively and accurately in the same place for each breasting operation. This is effected in accordance with another feature of the invention by providing a support for the top plate unstable to the extent of tending always to shift it rearwardly into we eve positive engagement with the rear curved end of the compressing die.

My invention also contemplates a chip ejector of novel construction by which the chip severed from the heel in the breasting operation may be positively ejected from the machine without danger of being caught.

As herein shown, the ejector is associated with the breast-ing knife and arranged to be placed under spring tension during the initial movement thereof. Operative movement of the ejector is delayed until the chip is completely severed, whereupon the ejector is tripped and imparts a blow to the chip driving it out of the machine.

Other features of the invention relate to mechanism for feeding heel blanks to the compressing dies and breasting knife. As herein shown, the heel blank is advanced in 90 two stages from its point of presentation to the dies. In this way the heel blank is carried mechanically through a path substantially twice the length of the feed slide stroke and the operator has no occasion to endanger his hands in the machine.

Another novel feature, herein disclosed for the first time, consists in a feed slide having heel engaging members movable transversely with the heel blank to the general direction of feed. Vhen the top plate surface is incli. ed this permits the heel blank to be delivered accurately in position as the heel en gaging members may follow the inclination of the top plate and ride up thereon with the heel blank.

These and other features of the invention will be best understood and appreciated from the following description of a preferred em bodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which Fig. 1 is a view in perspective of the upper portion of the machine;

Fig. 2 is a view in front elevation of the upper portion of the machine;

Fig. 3 is a sectional view on the line 3-3 of Fig. 2;

Fig. 41 is a plan view, partly in section, of the cross head and associated mechanism;

Fig. 3 is a plan view of the compressing dies and associated parts;

Fig. (5 is a sectional view, on an enlarged scale, showing the dies in compressing position;

Fig. 7 is a view in perspective of the breasting knife and the parts by which it is carrie'd; r r

Fig. 8 is a view in perspective of the breasting knife anditscarrier: r V

Fig. 9 is a "iew in perspective of the chip ejector;

Fig. 10 is a view in perspective of the compressing dies and associated parts;

Fig. 11 is a view in perspective of the breast die and associated parts;

Fig. 12 is a view in perspective of the ejector tripping mechanism;

Fig. 13 is a view in perspective of the knife guiding roll; and

Figs. 14 and 15 are views in perspective of a heel before and after the breasting operation.

My invention is shown as embodied in a heel compressing machine of the general type disclosed in U. S. Letters Patent No. 776,787, Leland, to which reference may be had for details of the driving mechanism not fully shown herein.

The machine comprises a heavy vertically disposed closed frame 10, within which is mounted the compressing mechanism. This comprises vfirst the upper stationary mold or die 12 having a removable hardened follower plate 1% secured thereto which is shaped in confe '-y to the heehseat contour desired in 8( heel. This die as a whole is removabl *tained in ways 16 in the upper part of the frame opening. It is positively located by a dowel pin 13 and retained in place, as shown in Fig. (3, by a washer under the head of a bolt 15 threaded into the frame.

In the frame openii is mounted a reciprocatory cross head 18 guided in ways formed in the frame and operated by toggle links 20 and 22, the lower of which. has a stationary journal, not shown, in the lower part of the frame. The toggle joint is connected to a horizontal link which, at its rear end, is connected to a crank 26 formed in a heavy driving shaft 28. A large gear 30 is keyed to the outer end of the driving shaft and to this the power of the machine is transmit-ted through suitable gear connection, not shown.

The cross head carries dies which cooperate in the compressing operation with the stationary follower plate M. These include the block 32, called the top plate because itengages the top lift of the heel being operated upon, the side dies 5% and the breast die 56. The top plate 32 is located within the cavity of the side dies and secured to the upper end of a stem 34 which is mounted to slide vertically in the cross head 18, being limited in its movement by a threaded pin 36 which projects into a key-way in the front side of the stem 34, as shown in Fig. 3. The top plate 32 has a rearwardly inclined lower surface and in its lower or compressing position it rests upon a supporting block 38 which has a correspondingly inclined surface. The support of the top plate is, tierefore, un stable to the extent that it tends to shift the top plate always toward the rear curved end of the side dies, All looseness and lost motion is, therefore, taken up at the rear of the top plate and the latter is positioned ac curately and positively held against lateral movement for a purpose which will presently appear.

It will be understood that the top plate 32 emails is carried bodily with the other dies in the cross head 18 but it is given an independent vertical motion for the purpose of ejecting the compressed heel from the dies. To this end, a lever is pivotally mounted upon a pin 42 in the cross head and arranged to extend at its inner end into the path of movement of the stem 3%. A sliding member 48 is pivotally connected to the lever 40 and provided with a downwardly extending stem 50 which extends into a bore in a stationary portion of the frame, where a friction plug is provided to retard its sliding movement. The outer end of the lever l-O is provided with a pin 46 which cooperates with a catch ll acting to hold the lever 10 positively against lowering the top plate stem until the catch a l is released. It will be seen that when the cross head moves downwardly, the lever 40 will be swung upwardly by the retarding action of the sliding member l8 until it reaches the upper limit of its movement as determined by the pin 36. in this position the compressed heel will have b en elevated above the plane of the compressing dies so that it can be conveniently ejected The lever 40 is latched in this elevated po ion by the catch a l. As the cross head starts to move upwardly swinging of the l er in the reverse di rection is delayed by the catch id to permit a new heel to be de iosited upon the top plate. The catch has a downwardly extending stem l5 which engages a stationary cam 47 when the cross head be ojins to more upwardly. The catch is thus tripped and the top plate lowered during the upward movement of t e cross head. The mechanism for operating the top plate just described, except for the means for delaying its descent, is not claimed herein since it forms the subject matter of my prior Patent No. 1,172,471.

Novel provision is made for reaching and retracting the retaining pin 36 which is threaded into the inner part of the cross head with its slotted head in the vertical passage through which the chips are discharged. For this purpose a spring plunger 35 having a rib extending across its inner end is mounted'in the outer wall of the cross head, as shown in Fig. 3. The plunger has a bent stem 37 by which it maybe ted and urged inwardly by a compression spring which surrounds the stem. When it is desired to release the top plate so that it may be removed from the die, the bent stem 3'? is rotated to bring a. pin l3 in the stem opposite to a slot in the cross head. The plunger is then moved inwardly by its spring and can be turned until its rib engages the slot in the head of the pin 36, whereupon the pin may be screwed outwardly to remove its inner end from the groove in the top plate pin 34 and leave the latter free to be lifted out of its bore in the cross head. The stem 37 is located within convenient reach of the operator whereas the retaining pin 36 is in a position of difficult access. The provision of the operating plunger 35, therefore, greatly facilitates the operation of replacing the dies when it is desired to substitute others adapted to handle heels of different shapes.

The upper surface of the top plate 32 is inclined downwardly toward its breast edge and the follower plate 14 has a corresponding general inclination. The heel 300 is, therefore, held between the two in such position that the breasting cutimparts a slight rake to the breast of the heel. e

The side dies 54 are carried by a two-part frame 52 which occupies the upper surface of he cross head 18 and is opened and closed, as

the cross head is reciprocated, by double links 84. These links, as shown in Fig. l, are pivotally connected at their inner ends to transverse pins 82 in the frame 52 and at their outer ends to stationary ournal pins 86 in the frame of the machine. The links 84 act as toggles in closing the frame and are brought substantially into their central horizontal position when the cross head reaches the upper limit of its stroke. The side dies 5a are detachably retained within the frame 52, as is the breast die 56. 7

The breast die 56 comprises a plate having an acting face which is flat or substantially and this plate is detachably secured to a block 58 bv means of a retaining screw 60.

lhe ends (if the breast block 58 are beveled and provided. with transverse dove-tailed guideways 68. The breast block is supported 1 and positioned by a pair of positioning members 62 with faces beveled to fit the beveled ends of the breast block and projecting T- shaped ribs which fit in the dovetailed guideways 68. Each of the positioning members has an outwardly extending'stem 6% which is guided for transverse movement in the frame 52 and is provideo with an ear 7 0, best shown in Fig. 11.

Each positioning member 62 is operated by a toggle, comprising a link 72, pivoted to the car 70 of the positioning member, and the link 74, which is pivoted to the frame 54 and connected to the link 7 2 by the toggle pin 83. A vertically disposed rod 78, having a head 7 6, is connected to the toggle pin 83 of each toggle. Each rod 78 extends upwardly from the toggle pin 83 and carries at its upper end a pair of lock nuts 85 which constitute an adjustable stop by which the rod is operated. Beneath the nuts 85 is a washer and compression spring 80 which encircles the rod and bears against the washer, tending to move the rod 7 8 always to the upper limit of its movement and maintain the toggle links 727-l in straightened position. Thus the positioning members 62 are moved to the inner limit of their respective paths and the breast block 58 is, consequently, advanced toward the side dies or longitudinally of the heel to its inner or compressing posi tion. In this position the breast die is separated slightly from the front end faces of the side dies 51 so that in the compressing operation a small portion of the breast end of the heel projects out of the dies and can be reached by the breasting knife. It will be understood that when the rods 78 are depressed to break the toggles 727l downwardly, the positioning members 62 will be pulled outwardly and the breast die 56 moved away from the side dies so that the breasting knife may be moved into this space, as will be presently explained.

The breasting knife is formed with an inclined edge so that itmay operate with a shearing cut. It is bevel d upon its outer ace and curved to correspond with the breast curvature desired in the finished heel. It is mounted in the low-er portion of an angular slide 101 having clamping flanges 102 which engage the opposite sides of the shank of the breast-mg knife and are drawn together by a clamping belt 103. The upper end of the hreasting knife has a tongue 101 which fits into a corresponding groove in the slide 101.

The slide 101 mounted in a vertical guideway formed partly in the upper portion of the stationary frame 10 and partly in a cover plate or door 105 hinged to the frame. At its upper end the slide 10% is provided with a pair of ears 106 between which is received the forward end of a lever 110 pivotally connected to the slide and having a fulcrum pin in the bracket 112 which projects upwardly from the frame 10. At its rear end the lever 110 connected, through a link, to a vertically operating rod 126 mounted to slide in a vertical bore in a bracket secured to the 40 rear side of the frame 10. The connecting link N in close proximity between the operating rod 120 and the lever 110 comprises a head 114 pivoted to the rear end of the lever 110, a head 12 1 pivoted to the upper end of the operating rod 126 and a threaded. rod 120 which, with a nut 122, afford means for adjusting the length of thelink and, accordingly, the path of oscillation of the lever 110. At its lower end the operating rod 12-6 carries a cam roll 128 which is engaged at the proper time in the cycle of the machine by a cam 130 on the shaft 28. The operating rod 126 is urged downwardly by a tension spring 118 connected at its upper end to a pin projecting rearwardly from the head 111 and at its lower end to a pin projecting from the stationary bracket 125.

The breasting knife 100 is initially located 7 to the heel-seat die and in its operating stroke travels ov r the vertical breast surfs of the follower plate 14- a d the top plate 32, as indicated in ig. 6. These a two surfaces, therefore, constitute a guide for the breasting knife in its breasting cut and as the knife is beveled outwardly, its reaction against the severed chip tends to make it hug these surfaces. It is this relation to the breasting knife which makes it important to position the follower plate with the die 12 IC- curately in the frame and so to mountthe top plate that it will be positively and accurately positioned against the rear of the side dies, as already explained.

In order to insure that the breasting knife shall be maintained in contact with the vertical faces of the die plates 11 and 32, a presser roll 1 10 is provided to act upon the outer face of the slide 101 and p ish it yi ldingly inwardly during its movement. The roll is journaled between the forks of a stem 142, see Figs. 3 and 13, and is mounted in a recess formed in the inner face of the hinged cover plate 105. This stem is encircled by a compress-ion spring 1 1-1 which bears against a collar on the stem 1 12 and ur. no roller 1&0 in 'ardly at all times. The stem 142 is pro vided at its outer end with a stop collar which limits its lllWtlTd movement when the cover plate is opened and retainsthe roller in its recess.

In order positively to remove the severed chip 302 from the dies, an ejector 132 is provided which acts immediately after the breastino operation has been completed. The ejector 132 mounted in the lower end of a slide 13 1 which is arranged to move vertically formed in the carrier slide 104; of the ki 'fc. A compression spring 138 encircles a rod 130 projecting upwardly from the ejector slide 13 1 and tends always to move it downwardly. Such movement is delayed in the normal operation of the machine by a step 146 which cons itutes part of a head carried by a stem 1414i mounted. in the cover plate 105 beneath the presser roll 14-0. A compression spring, shown in Fig. tends to protrude the stop 1 16 into the path of the ejector slide 13 1. The stem 14-91 is mounted in a boss formed upon a U-shaped bracket secured to the outer side of the cover plate 105. The head in which the stop is formed has beveled shoulders 148 at either side which are acted upon by wecge cams 1 1'? carried upon the outer surface of the knife slide 10%. It will be understood that as the knife slide 104 is moved downwardly, the ejector slide 131 is held against movement by the stop 146 and the spring 138 is compressed. hen the breasting knife has moved sufficiently to complete the breasting operation, the wedge cams 1 17 act to retract the step 116, thus releasing the slide 134 and allowing it to shoot downwardly under the i ctuation of the spring 138, which has meanwhile been placed in a state of compression. The therefore, strikes the severed chip 302 a sharp blow and drives it downwardly through an opening provided for that purpose in the cross head and out of the machine.

The rods 78, carrying the steps 85 and operating the toggles 7 2T 1, are depressed against the action of the springs 80 by bars 152, one of which is mounted on either side of the cover plate 105. Each of these bars is suspended by a short link 154 from a bracket member 156 secured to the upper part of the frame 10 and each s confined and guided at its lower end by a pin and slot connection with a bracket member 158, also secured to the framelO. The upper end of each bar is positioned beneath a hardened block 108 secured to shoulders irojecting from the knife slide 104. The lower end of each bar 152 is shaped to engage the stop nuts 85 on the upper end of the rods 78 and the adjustment of the stops is-such that the bars act in the initial move ment of the knife slide to depress the rods 78 and break the toggles as already eizplainec. The outer corners of the hardened pieces 108 and the inner corners of the upper end of the bars 152 are beveled so that as the knife slide is depressed the links 154 carry the outer ends of the'bars outwardly out of range of the hardened pieces, so that they may pass by the bars in the further movement of the knife slide, that is, the bars are first depressed by the knife slide to break the toggles and then move to an inoperative position in which they do not interfere with the further movement of the knife slide.

The toggles 7 274 are normally straightened at the conclusion of the breasting operation by the action of the compression springs 80 but in order to safeguard this action and make it positive, an arm 160 is pr vided through the forward end of which each rod 7 8 loosely passes and which is pivoted at its rear end to ears 162 projecting from the rear side of the frame 52; The arms 160 are each ext-ended forwardly to overlie the inner end of stationary bars 164 secured to the machine frame. The bars 164 are so located that when the cross head is moved to its lowermost position they will encounter the ends of the arms 160 and, swing ing them upwardly, will positively lift the rods 7 8, the arms 160 engaging beneath the stop nuts 85 of these rods. Positive return of the breast block to its proper initial position is thus insured.

Secured to the cross head 18 is a frame or bracket 166 having horizontal ways 167 formed upon its upper surface for a carrier slide 168. The bracket has a curved upwardly extending arm 170 at its outer end to which is secured a stationary plate 172 which overlies the outer portion of the slide 168 and is designed to receive the heel blank presented to the machine by the operator. A pair of longitudinally extending guide strips 174 are adjustably mounted in the arm 170 and extend across the surface of the plate 172 and over the portion of the slide 168 which is beyond the stationary plate 172, being shaped at their ends to embrace the rear curved end of a heel. The guide strips are of spring material and serve to guide a heel blank pushed along between them and finally out between their curved ends. The slide 168 carries a pusher bar 176 which is arranged to travel upon the upper face of the stationary plate 172 between the guide strips 17 4 and advance a heel along the plate 172 and into the curved ends of the guides in each cycle of the machine.

Pivotally mounted upon the inner end of the slide 168 and beneath a projecting flat portion 169 thereof is a pair of carrier fingers each comprisin an inner portion 180 movable about a vertical aXis and an outer por tion 182 pivoted thereto for movement about a horizontal axis. The outer portions 182 carry swivel shoes 184 which are self adjust-- ing to the contour of the heel and are extended beyond the shoes to form pushers 186 which act to push the compressed and breasted heel from the top plate 32 and out of the machine, as will be apparent from Fig. 3. The inner portions 180 of the fingers are geared together and are opened and closed as the slide 168 is operated by a cam 188 acting through a cam block 189. The slide 168 is moved in and out as the cross head reciprocates by a link 190 and a lever, not shown, within the bracket 166.

The construction of the slide operating mechanism is not further explained herein since it forms the subject matter of my prior Patent No. 1,172,471, to which reference may be had. That patent also discloses heel car-.

rying fingers similar to those employed in the present construction, except that they have no capacity for movement about horizontal axes. That feature is new in the pres ent invention and is of particular importance in connection with a top plate having an inclined face in that it permits the heel carrying fingers to ride up upon the top plate and maintain their engagement with the heel until the heel has been delive'ed squarely upon the top plate. The fingers 182 are shown in their heel delivering position in Fig. 3. The pushers 186 have just discharged a compressed heel from the dies and the fingers 182 are about to be separated to deposit a new heel blank in position upon the top plate.

It will be apparent that the heel feeding mechanism advances a heel blank to the top plate in two stages. The heel is placed by the operator upon the stationary plate 172 between the guide strips 174 and near the arm 170 when the slide 168 is in its outer position. In the first reciprocation of the slide the pusher 176 advances the heel blank across the surface of the plate 172 and beyond the edge thereof between the curved ends of the-guides where it rests on the portion 169 of the slide 168. In the next reciprocation of the slide 168 the fingers 182 are moved back, the heel being held stationary by the inner edge of the lzil) plate 17 2 and supported by the portion 169. The heel then drops between the fingers 182 which close upon it and carry it forward to the top plate 32. It will thus be seen that the operator has no occasion to put his hands anywhere near the path of the breasting knife but that the heel blank is carried in mechanically from a point in the machine which may be reached with entire safety.

The operation of the machine will be apparent from the foregoing description but maybe summarized for convenience fol' lows. The operator places a heel blank upon the stationary plate 172 in advance of the pusher 176 and between the guide strips 174. It will be understood that the pusher is re tracted and the slide in its outward position and not advanced as shown in Figs. 1 and In the first stroke of the feed slide the heel blank advanced across the surface of the stationary plate 172 and deposited between the curved ends of the guide strips, and in the ensuing stroke of the feed slide is engaged by the fingers 182 and carried inwardly to the surface of the top plate 32, the fingers 1S2 swinging upwardly and accommodating themselves to the slope of the top plate. The feed slide is then retracted and the cross head rises, engaging the heel blank against tee follower plate, as shown in Fig. (3. Simultaneously, the side dies are contracted and the compressing operation effected. In this operation the toggle links 20 and 22 are moved to their dead center. In the continued operation of the machine the toggle links are carried past their dead center, as indicated in 3. 11's thev'l'eave' this position, thecam 130 begins to oscillate the lever 110 and depresses the breasting knife. The toggle operating bars 152 are moved downwardly with the knife slide and encounter the stops 85 on the toggle operating rods 78 during the initial movement of the knife slide. The breast die 56 is thus retracted and the breasting knife moves downwardly in contact with the end surfaces of the follower plat 14 and the top plate, effecting the breasting operation. As this is completed, the wedge cams 147 trip the chip ejector 132, which shoots downwardly, driving the chip 302 out of the cross head. The parts of the machine are shown in this condition in Fig. 6. During this interval, the toggle links 20 and 22 have moved beyond their cead center but not sufficiently to impart any substantial movement to the cross head so that the heel is still firmly held. As the toggle links begin to move in the reverse direction, the knife slide 10 is elevated through the action of the spring 118 and the breasting knife and ejector returned to their initial position. The full pressure of the compressing dies is restablished momentarily the toggle links pass through their dead center for the second time but the breast die is not positively returned to its initial position until the cross head reaches the lower limit of its travel, when the bars 164i act through the arms 160 to straighten the toggles 72-74. At the same time the top plate 32 is elevated and in the next stroke of the feed slide the pushers 1S6 carry the compressed breasted heel off the top plate and out of the machine.

The manner of timing the compressing dies and releasing the breast block herein disclosed may be utilized with particular advantage in a compressing machine where it is'desired to perform also the breasting operation.

It will be apparent, however, that it afiords opportunity for any other secondary opera tion upon the heel and is in no sense restricted to use in connection with breasting mechanism.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A machine for compressing and breasting heels, including a stationary head, a reciprocatory breasting knife mounted therein, heel compressing dies movable toward the head to compress the heel and simultaneously to carry it into range of the breasting knife, and means for operating the breasting knife while the heel is maintained in substantially its compressing position.

2. A machine for compressing and breasting heels, including a stationary head, a reciprocatory brea sting knife mounted therein, heel compressing dies movable upwardly from a heel receiving position to present a. heel in the path of said knife and simultaneously'te compress the heel, and means for operating the breasting knife while the heel is held by the dies.

3. A machine for compressing and breasting heels, including a stationary head having a reciprocatory breasting knife mounted therein, heel compressing dies movable toice ward and from the head to compress a heel H at the limit of their movement and also to present the heel in range of the breasting knife, and means for operating the breasting knife while the dies are maintained substantially in compressing position.

4. A machine for compressing and breast ing heels, including a stationary presser member, a reciprocatory breasting knife acent thereto, a cooperating presser member, a toggle for moving said presser member to engage a heel between it and said stationary presser member arranged to be straightened twice in each cycle of the machine, and means for operating the breasting knife between said two straightenings of the toggle.

6. A machine for compressing and breasting heels, including cooperating presser members, a toggle for operating one of said members and acting to compress a heel when straightened and then to move past its straight position, and a breasting knife arranged to operate while the toggle is moving to and from said straight position.

7. A machine for compressing heels, having a stationary follower, heel compressing dies including a breast block, a toggle for moving said dies toward the follower, acting when straightened to compress a heel therein and being carried past its center to relieve the pressure upon the heel, and means for retract ing the breast block when the pressure is so relieved.

8. A machine for compressing and breasting heels, having a stationary follower, heel compressing dies including a breast block, a toggle for moving said dies toward the follower, .acting when straightened to compress a heel therein and being carried past its center to relieve the pressure upon the heel, a breasting knife timed wi h reference to said toggle, means for retracting the breast'block when the pressure is so relieved, and means for operating the breasting knife in close sequence.

9. A machine for compressing heels, having a stationary follower, heel compressing dies including a breast block, means for moving said dies to compress a heel in cooper: tion with said follower, and toggle mechanism for retracting said breast block while said dies are maintained substantially in compressing osition.

10. A machine for compressing heels, having compressing dies including a breast block, positioning members for maintaining said breast block in position with respect to the complete die, and means for simultaneously shifting said positioning members to retract the breast block after the initial compressing operation and prior to substantial separation of the compressing dies.

11. A machine for compressing heels, having compressing dies including a breast block, positioning members movable transversely and controlling the position of the breast block longitudinally of the heel, and means separate from the compressing dies and acting in timed relation to the compressing operation to shift each of said positioning members to retract the breast block.

12. A machine for compressing heels, having compressingdies including a breast block with beveled end surfaces, beveled positioningmembers having a clove-tailed connection with each end of the breast block, and a toggle for operating each positioning member.

13. A machine for compressing heels, having compressing cries including a breast block, means for positioning the breast block longi tudinally of the dies including movable sup porting members, a tog le connected to each member, and means for operating said toggles timed to act subsequently to the compressing operation.

14-. A machine for compressing and breastingheels, having compressing dies including a breast block, a reciprocato'ry breasting Knife, means for positioning the breast block in the complete die including movable supporting members, a toggle connected to each member, and means movable with the breasting knife and acting in advance thereof to operate said toggles.

15. A machine for compressing ieels, including side dies, a bottom die shaped to fit within the side dies and having an unstable support tending at all times to shift it toward the curved end of the side dies.

16. A machine for compressing heels, including side dies, a bottom die shaped to fit within the side dies and having a rearwardly inclined lower surface, and a similarly in clined support tending at all times to shift the bottom die toward the curved end of the side dies. 7

17. A machine for compressing and breast ing heels, including side dies, a bottom die, and a breasting knife guided by the breastend surface of the bottom die, said bottom die having an unstable support tending at all times to move it into engagement with the curved end of the side dies to position positively the bottom die for guiding said knife.

18. A machine for compressing and breasting heels, comprising dies for en aging the opposite flat faces of a heel, and a breasting knife movable in contact with the end faces of said dies for breasting a heel held between them.

19. A machine for compressing and breasting heels, comprising dies for engaging the opposite flat faces of a heel, and a breasting knife movable in contact with the end faces of said dies for severing that portion of the heel projecting beyond said faces and being beveled on the side away from said faces, whereby the knife is made to hug the same during the breasting cut.

20. A machine for compressing and breasting heels, comprising dies for engaging the opposite fiat faces of a heel and having aligned end faces, a breasting knife movable in contact with said faces, and means for pressing said knife against the same.

21. A machine for compressing and breastits its

including side dies, a bottom die ing heels,

lies and to be shaped to it within the side supported by the rear curved end thereof, a breasting knife movable in contact with the outer end of the bottom die and having an inclined cutting edge cooperating therewith to make a shearing cut, and means for pressing the breasting knife against the end of the bottom die to maintain. it in contact with the die during its stroke.

22. A machine for compressing and breasting heels, including a reciprocatory breasting knife, heel compressing dies arrang d to hold alien and guidethe knife'du tnr breasting operation, and means for yieldingly pressing the breasting knife against the guiding, surface of the dies.

23. A machine for compressing and breasting heels, including a reciprocatory breasting knife, heel compressing dies operated to hold a heel during the breasting operation, and a spring pressed roller mounted to bear upon the side of the knife opposite to the diesv 24. A machine for compressing and breasting heels, having con'ipressing dies, a iii-easting knife operating to brea held by the dies, and a chip ejector associated with the breasting knife.

25. A machine for compressing and breasting heels, having compressing dies, a breasting knife operating to breast a heel held by the dies, and an ejector yieldingly operated to impart a blow to the chip after the breasting operation.

26. A machine for compressing and breasting heels, having compressing dies, a breasting knife operating to breast a heel held by the dies, an ejector arranged to be placed under spring pressure during the breasting operation, and means controlled by the brea-sting knife for tripping the ejector.

27. A machine for operating on heels, havin in combination, a frame with a guideway therein, a reciprocatory breasting knife mounted to slide in the guideways, a cover plate hinged to the frame and forming one si e of the guideway, and means for operatthe knife.

28. A machine for operating on heels, having in combination, a frame with a guideway therein, a reciprocatorv breasting knife and an ejector mounted therein, a cover plate h na'ed to tl e frame and forming one side thereof. a releasable stop mounted in the cover plate for delaying the action of the ejector, and means movable with the knife for tripping the ejector.

A machine for operating on heels, having in combination, heel-holding members in- -lnding a breast-engaging device located initialiv in contact with the breast of the heel and positively positioning the heel, a reciprocatory hreasting knife. and means operated in the m. vement of said knife for retracting -l-l i 1 i .ioni r.ie neei so as to ,clease toe plate e: A machine for operatin on heels, havin conbination. :iioning means including breast bloc movable to from the breast face of a heel, a. breasting hi mo able into the space initially occupied by t e brea It block, mechanism 1 he breast block, and an ophar for the toga'le mechanism actuated during the initial movement of the br tiSilllg knife. I

A mad he for op ating on heels, having in combination, compressing dies includa top plate havi an inclined surface, 1' a feed slide movable for delivering heel. blanzs thereto having heel engaging memso mounted thereon as to ride up the 'ined face of the. top plate.

33. A machine for operating on heels, having in combination, compressing dies including a top plate having an inclined surface, a feed slide movable toward an d from the dies in a horizontal path and having heel engaging fingers mounted to move at right angles to the path of the slide, whereby they may conform to the inclination of the top plate.

A machine for operating on heels. hav ing in combination, cooperating heel holding: plates for engaging the opposite flat surfaces of a heel blank, and a feed slide movable in a path disposed at an angle to the plane of the faces of said plates and having heel engaging fm rers pivotally mounted thereon, whereby they may assume an angular position in delivering heel blanks between said plates.

35. A heel compressing machine having a reciprocatory cross head vith a vertically disposed passage therein, a top plate carried by said cross head and having stem located behind said passage, a stop men'iber cooperating with said stem, and a device projectinz' through the outer wall of said cross head and movably retained therein which may he operated to engage said stop member for the purpose of releasing it.

36. A heel compressim: machine having a reciprocatory cross head, a top plate carried thereby and. having a stem located in the interior of the cross head, a threaded retaining pin for said stem, ant a releasing; device mounted in the outer part of the cross head adapted to be operated to turn the retaining pin for releasing the stem.

37. A heel compressing machine having a reciprocatory cross head carrying compressing dies which include a breast block, and means for retracting said breast block at the end of the compressing stroke of the cross head and advancing it at the other end of the stroke.

38. A machine for operating on heels, having in combination, a reciprocatory cross head carrying compressing dies which include a breast block, means for contracting said dies to compress the heel at one end of the cross head travel, and means for retracting said breast block while the cross head occupies substantially its compressing position to permit a secondary operation to be effected upon the heel breast and to advance said breast block when the cross head has moved out of compressing position.

39. A machine for operating on heels, having in combination, compressing dies for engaging the opposite faces of a heel and having aligned end faces, and a breasting knife movable in contact with said faces and having a cutting edge inclined to its path of travel whereby it acts with a shearing cut to breast the heel held by said dies.

40. A machine for operating on heels, having in combination, cooperating heel engaging plates movable to hold a heel with its breast portion projecting beyond the edge of one of said plates, and a reciprocatory breast ing knife movable in contact with said edge and having an inclined cutting edge cooperating therewith to breast the projecting portion of the heel with a shearing cut.

41. A heel compressing machine having a reciprocatory cross head carrying compressing dies which include a top plate, a feeding device for delivering heel blanks to the top plate, and means for raising and lowering the top plate actuated by the cross head movement and delayed in its action of lowering the top plate until the cross head has completed a portion of its travel.

away the projecting portion of the heel blank.

44. A machine for compressing and breasting heels, having side dies with aligned end faces, a breast die disposed oppositely to said end faces, means for contracting said dies to compress a heel blank leaving its breast portion projecting beyond the end faces of the side dies, and a breasting knife movable in a path adjacent to the end faces of said side dies to breast away the projecting portion of the heel blank.

45. A machine for compressing and breasting heels, having compressing dies, a breasting knife movable in a path adjacent to said dies, and a reciprocatory fee-d slide acting to deliver heel blanks to the compressing dies in two steps from a remote point of reception.

46. A machine for compressing and breasting heels, having compressing dies, a breasting knife movable in a path adjacent to said dies, and a reciprocatory feed slide having spaced heel engaging devices and being adapted to receive a heel blank at a point remote from the compressing dies and deliver it in two stages in a path crossing that of the breasting knife to said compressing dies.

In testimony whereof I have signed my name to this specification.

THOMAS LUND.

42. A heel compressing machine having a V reciprocatory cross head, compressing dies carried thereby, a top plate, a lever for holding said top plate in elevated position to receive a heel blank when the cross head is in its lowermost position, a catch for holding said lever, and means for tripping the catch to release said lever after the cross head begins to move upwardly.

43. A machine for compressing and breasting heels, having compressing dies including side dies and a breast die, means for contracting said dies to compress a heel arranged to maintain the breast die spaced from the ends of the side dies so that a portion of the heel blank projects beyond the side dies, and a breasting knife movable in a path adjacent to the ends of the side dies to breast Illa 

